body{
    margin: 0;
    background-color: gainsboro;
}
.pg_header{
    height: 44px;
    background-color: blue;
}
.bar{
    width: 900px;
    margin: 0 auto;
}
a{
    text-decoration: none;
}
.pg_header .hd_menu{
    float: left;
}
.pg_header .hd_menu ul{
    margin: 0;
}
.pg_header .hd_menu ul li{
    padding:0 20px;
    float: left;
    list-style: none;
    color:white;
    text-decoration: none;
    line-height:44px ;
}
.pg_header .hd_account ul li{
    padding:0 10px;
    float: right;
    list-style: none;
    color:white;
    text-decoration: none;
    line-height:44px ;
}
.pg_header ul li:hover{
    background-color: #00bc6f;
}
.pg_body{
    position: relative;
    top: 20px;
    left: 20px;
}
.pg_body .bd_content form .tit{
    width: 200px;
}
.pg_body .bd_content form .con{
    width: 198px;
    height: 100px;
}
.pg_body .bd_content ul li{
    list-style: none;
    width: 666px;
}
.pg_body .pager{
    display: inline-block;
    padding: 5px;
    margin: 5px;
}
.pg_body .pager a{
    border: 1px solid gray;
    padding: 5px;
    background-color: white;
    color: blue;
}
.pg_body .pager input{
    width: 44px;
    height: 22px;
    border-radius: 60%;
    text-align: center;
    line-height: 22px;
}
.pg_body .pager a.active{
    background-color: #5cb85c;
}
.pg_body .pager a:hover{
    border: 1px solid gray;
    display: inline-block;
    background-color: gray;
}